98 Degrees singer Nick Lachey made temperatures rise when he hit the beach in Cabo San Lucas, Mexico, on Thursday, Jan. 2. Joined by wife Vanessa Lachey and son Camden , the famously fit musician showed off his perfect pecs and awesome abs as he soaked up the sun. Nick reflected on the last year two days earlier via News he feels just as young as he did when he was a single pop star. "I'm so immature and still feel so young," he said.